Improvement in hillside-plows



I. BREWSTER.

- Side-Hill Plow.

Patented Nov. 14, 1848.

- AM. PHOTO-LITHU. 60. N (OSBBRNE'S PROCESS) Uwrran STATES PATENTOFFICE.

IRAM BREWSTER, OF STAMFORD, NEW YORK.

IMPROVEMENT lN HlLLSlDE-PLOWS.

Specification forming part of Letters Patent No. 5,922, dated November14, 1848.

To all whom it may concern.-

Be it known that I, IRAM BREWSTER, of Stamford, in the county ofDelaware, State of New York, have invented anew and useful Improvementon Reversing Flows; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being bad tothe annexed drawings, making a part of this specification, in whichFigure l is a perspective view, and Figs. 2, 3, 4, 5, 6, 7 sectionalviews.

To enable others skilled in the art to make and use my plow, I willproceed to describe its construction and operation.

Fig. 7 is the point, cast partly hollow, (marked 2.)

Fig. 6 is a side view of the share and moldboard, cast all in one piece.The mold-board is marked 3, and 2 is the tenon on which the point slips,and is screwed fast with a screwolt.

Fig. 5 is the interior of the mold-board. which is cast hollow, nearly,and marked 4. D is a bar cast across thehollow part nearthe point, inwhich, under it, slips a pivot, C, Fig. 4.

Fig. 4 is the inside of the landside-plate to fit onto Fig. 5 by thepivot C under the bar D, and by screw-bolts and curved braces about aninch long, E E.

Fig. 3 is the outside of the landside-plate. F F are openings forclinching the standard of the beam and the landside together. 7 7 7 aresockets, into which the points or pivots of the standard of the beamslip and unite the beam, landside, and mold-board.

Fig. 2 is the standard. 5 5 are the pivotpoints which slip into 7 7 7,and, being round, enable the mold-board and laudside to revolve fromside to side of the beam. 6 is a clutch on a spiral-screw spring, G,which moves through the center of A and is fastened on A This spiralspring is for gearing and ungearing the mold-board by pressing on theend of i it with the foot, by which action the clutch 6 is thrown out ofF F and the mold-board changed to either side of the beam. 8 8 arescrew-bolts, which unite the standard with the.

beam.

Fig. 1, the perspective view, represents all the sectional views unitedtogether. A A are the standard-braces of the beam B. 2 is the point ofFig. 7. 3 is the mold-board, Fig. 6. 10 is the landside, Fig.4; G, thespiral spring clutched into the landside by clutch 6. 7 is the socket ofpivot 5. E is a curved brace, uniting the landside and mold-board bybeing screwed together by a bolt. I

The nature of this invention is by having a hollow mold-board to enablethe plow to be easi y shifted from side to side in plowing ridges ofland without making a long headland turn. For this purpose themold-board of my plow, being very light in proportionto to its size, caneasily be shifted from one side of the beam to the other side by meansof the spiral spring and the pivots 5 5, revolving in the sockets 7 7.

Having thus described my invention, the mode of its construction andoperation, I do not claim the revolving mold-board as a new invention,as that has been known before; but

What I claim as myinvention, and for which I desire to secure LettersPatent, is-

1. The hollow mold-board and its combination with the standard A A andthe spiral spring Gr, substantially as described, and for IRAM BREWSTER.

Witnesses:

R. MACFARLANE, M. MoRAE.

